EP0477473B1 - Verfahren und Nähmaschinen zur Herstellung von Nähmustern - Google Patents

Verfahren und Nähmaschinen zur Herstellung von Nähmustern Download PDF

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Publication number
EP0477473B1
EP0477473B1 EP91110035A EP91110035A EP0477473B1 EP 0477473 B1 EP0477473 B1 EP 0477473B1 EP 91110035 A EP91110035 A EP 91110035A EP 91110035 A EP91110035 A EP 91110035A EP 0477473 B1 EP0477473 B1 EP 0477473B1
Authority
EP
European Patent Office
Prior art keywords
sewing
individual
patterns
stitch
stepping motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91110035A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0477473A2 (de
EP0477473A3 (en
Inventor
Willi Meier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Pfaff AG
Original Assignee
GM Pfaff AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GM Pfaff AG filed Critical GM Pfaff AG
Publication of EP0477473A2 publication Critical patent/EP0477473A2/de
Publication of EP0477473A3 publication Critical patent/EP0477473A3/de
Application granted granted Critical
Publication of EP0477473B1 publication Critical patent/EP0477473B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/02—Work-feeding means with feed dogs having horizontal and vertical movements
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/04—Sewing machines having electronic memory or microprocessor control unit characterised by memory aspects
    • D05B19/10—Arrangements for selecting combinations of stitch or pattern data from memory ; Handling data in order to control stitch format, e.g. size, direction, mirror image

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a sewing machine for performing the method.
  • an electronically controlled sewing machine which has a memory with direct access (RAM), in which different access data from individual sewing patterns stored in a permanent memory (ROM) of the sewing machine can be stored in different order, in order then to be able to sew in this order.
  • This sewing machine can be used to carry out a sewing process in which one or more forward or backward stitches, which are also available in the permanent memory, can be inserted between two successive individual sewing patterns, in order in this way to generate new pattern structures which differ from the existing individual sewing patterns.
  • the invention has for its object to easily generate combination patterns from the existing individual sewing patterns, the width of which is in principle not subject to any restrictions.
  • the sewing machine shown in FIG. 1 has an arm 1 which is connected to a base 3 via a stand 2.
  • the base 3 is supported by a base plate 4 and is widened towards the front relative to the stand 2 and the arm 1. It is equipped with a fabric support arm 5 which is displaced rearward with respect to the central axis of the base 3 and in which the lower stitch-forming tools, in particular the Gripper of the sewing machine are stored.
  • a main shaft 6 mounted in the arm 1 of the sewing machine drives a lower shaft 9 (see also FIG. 2) via a toothed wheel 7 and a toothed belt 8, which shaft serves to drive the hook in a known manner, not shown.
  • a stepping motor 10 is provided, which is connected to a needle bar pendulum 13 via a crank 11 and a connecting rod 12.
  • the needle bar pendulum 13 is articulated with a bolt in the arm 1 and carries a vertically movable needle bar 14 with a needle 15.
  • the needle bar 14 is fixedly connected to a pin 16, on which a link 17 engages, which acts on one on the main shaft 6 attached crank 18 is articulated.
  • a step motor 20 (see FIG. 2) is fastened in the base 3, the shaft 21 of which drives a toothed segment 24 fastened on an adjusting shaft 23 via a pinion 22.
  • a link guide 25 is attached on the free end of the actuating shaft 23, the link guide 25 is attached.
  • An eccentric 30 is fastened on the shaft 9 and is gripped by an eccentric rod 31 which is articulated in the central part of a push rod 32. This is connected at one end via a pin 33 to a sliding block 34 which is rotatably mounted on the pin 33 and which interacts with the sliding block guide 25 in a known manner.
  • the other end of the push rod 32 is connected to a swing arm 35a of a feed rocker 35 which is supported by an axle 36 mounted in the forearm 3.
  • An axis 37 is fastened in a bore of the feed rocker 35 by means of screws 38.
  • a carrier 39 is pivotally and displaceably mounted on the axis 37 via eyes 39a.
  • the carrier 39 which is supported on a lifting eccentric 41 fastened to the shaft 9, is firmly connected to a fabric slide 42.
  • the fabric pusher 42 is equipped with transport webs 42a which act on the sewing material through cutouts 43 (see also FIG. 1) in a stitch plate 44 covering the fabric support arm 5 in the area of the stitch formation point.
  • the cutouts 43 are designed in such a way that the transport webs 42a of the fabric pusher 42 can perform displacement movements both in the feed direction and transversely to the feed direction.
  • a stepper motor 46 is screwed, on the output shaft 47 of which a pinion 48 is fastened.
  • This is in drive connection with a toothed segment 50a of a rocker 50 which is mounted on a pin 51 fastened on the plate 45.
  • a rotation of the rocker 50 surrounding the pin 51 is designed as an eccentric 52, the axis of which extends outside the axis of the pin 51.
  • a sleeve 53 is rotatably mounted on the eccentric 52, against which a side surface 39b of the carrier 39 bears under the action of a tension spring 56. This is suspended on one end on a pin 57 fastened to the carrier 39 and on the other end on a bolt 58 which is fastened in the axis of the eccentric 52.
  • a microcomputer 61 (FIG. 3) is accommodated in the housing of the sewing machine and is connected via lines 62 to a pulse generator 63 driven synchronously by the main shaft 1 of the sewing machine.
  • the pulse generator 63 sends a pulse to the microcomputer 61 each time the machine rotates when the needle 15 has left the sewing material and the stepping motor 10 can adjust the needle bar position; also when the feed pusher 42 has finished its feed movement and the stepper motors 20 and 46 can control a new feed amount.
  • a stitch position control unit 65 is connected to the microcomputer 61 via lines 64 and is connected to the stepping motor 10 via lines 66.
  • the microcomputer 61 is connected via lines 67 a forward / reverse feed control unit 68 and this is connected to the stepping motor 20 via lines 69.
  • the microcomputer 61 is connected via lines 70 to a cross feed control unit 71 for executing a cross feed and this is connected via lines 72 to the stepper motor 46.
  • a permanent memory (ROM) 74 is connected to the microcomputer 61 via lines 73, a working memory (RAM) 76 is connected via lines 75 and a display unit 78 is connected via lines 77.
  • a selection unit 80 is connected via lines 79, a program input key 82 via a line 81 and a repeat key 84 via a line 83 to the microcomputer 61.
  • the three stepper motors 10, 20 and 46 are identical in their construction and in their basic control.
  • the stepper motor 10 is used to control the lateral movement of the guide rocker 13, the stepper motor 20 to control the sliding movement of the fabric pusher in its normal feed direction and the stepper motor 46 to control the sliding motion of the fabric pusher 42 transversely to its normal feed device.
  • a control plate 85 (FIG. 1) is attached to the front of the housing of the sewing machine.
  • the display unit 78 is accommodated in this. It consists of a section 86 with two display elements and a section 87 with eleven display elements.
  • the sewing patterns to be called up are indicated by a two-digit number.
  • two rocker buttons 88 and 89 are assigned, which form the selection unit 80.
  • the right rocker button 89 is used to switch the number formed from both display elements up (+) or down (-).
  • the left rocker button 88 is used to independently up (+) or down (-) the number formed with the left display element.
  • rocker buttons 88 and 89 is the program input button 82 and the Repeat button 84 arranged.
  • the display elements of the display unit 78 are connected via lines 77 to the microcomputer 61, which can switch them to a program memory formed by part of the main memory 76.
  • the electronic control part of the sewing machine is designed so that the control commands for the stepper motors 10, 20 and 46 of each individual sewing pattern are stored in coded form in the permanent memory 74 of the microcomputer 61 as control segments and from there via the pattern number in the desired order in the memory 76 contained program memory can be entered.
  • the decimal number taken from a table and assigned to the first individual sewing pattern is set with the two rocker buttons 88 and 89 in the display elements of section 86 of display unit 78.
  • the basic data corresponding to the selected individual sewing pattern are taken over from the permanent memory 74 into the main memory 76 by the microcomputer 61.
  • the program input key 82 is actuated, this pattern number is entered into the program memory part of the main memory 76.
  • further individual sewing patterns can be called up from the permanent memory 74 and stored in the program memory part by the program input key 82. In this way, sewing sequences can be saved with any consecutive individual sewing patterns.
  • the machine After completion of the storage, the machine is switched to the "sewing the stored sewing pattern" mode by pressing the repeat button 84 and at the same time the content of the stored pattern numbers is displayed by the section 87 of the display unit 78.
  • the microcomputer 61 controls the stepping motor 10 for the lateral pendulum movements of the guide rocker 13 via the stitch position control unit 65, the stepping motor 20 for the normal feed movement of the fabric pusher 42 via the forward / backward feed control unit 68, and the stepping motor via the transverse feed control unit 71 46 for the transverse movement of the fabric slide 42 according to the programmed sequence, which is then repeated.
  • the stepping motor 10 pivots the guide rocker 13 into the new stitch position for the needle 15 as soon as it has left the material, via the crank 11 and connecting rod 12.
  • the stepper motor 20 adjusts the link guide 25 via the pinion 22 and the toothed segment 24.
  • the link block 34 is pushed back and forth in the link guide 25.
  • the link block 34 pivots the feed rocker 35 via the push rod 32 and thus gives the feed pusher 42 feed movements, the size and direction of which depends on the angular position of the link guide 25.
  • the lifting eccentric 41 In synchronism with the rotation of the main shaft 6, the lifting eccentric 41 is driven via the shaft 9 and gives the fabric slide 42 lifting movements.
  • the stepper motor 46 drives the rocker 50 via the pinion 48, whereby the eccentric 52 laterally displaces the carrier 39 against the action of the tension spring 56 via the sleeve 53.
  • the transport webs 42a of the associated fabric pusher 42 then take the sewing material with them transversely to the normal feed direction when they are shifted to the side. This shift takes place in synchronism with the normal feed movement of the fabric pusher 42, ie during the phase of the transport webs 42a of the fabric pusher 42 raised over the needle plate 44.
  • the permanent memory 74 contains so-called offset stitches.
  • These offset stitches consist of 8 individually selectable single stitches V1 to V8 (Fig. 4), the feed in the normal feed direction is zero or 1 mm forwards or backwards and the feed in the transverse direction is also zero or 1 mm to the right or left.
  • the combination pattern shown in FIG. 5 is put together by successively programming the diamond pattern R and the individual stitches V2 and V8.
  • the number 64 is the corresponds to the diamond pattern R, set by the selection unit 80 in section 86 of the display unit 78 and then entered into the working memory 76 with the program input key 82.
  • the number 92 which corresponds to the single stitch V2 is set in a corresponding manner in section 86 and ten of these single stitches V2 are entered into the working memory 76 by pressing the program input key 82 ten times.
  • This is followed by a further insertion of the diamond pattern R with subsequent input of new single stitches V2, etc., until the entire program sequence of the combination pattern has been created.
  • the programmed combination pattern can then be sewn.
  • the further combination pattern shown as an exemplary embodiment in FIG. 6 is put together by successively programming the arch pattern B and the individual stitches V7 and V3 in a manner corresponding to the combination pattern described above.
  • combination patterns of any width can thus be generated, the combination patterns being able to be formed either from a sequence of the same individual sewing pattern interconnected by the individual stitches or from a sequence of different individual sewing patterns.
  • the execution of the individual stitches is of course not limited to the stitch length and direction of execution shown as an example in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Sewing Machines And Sewing (AREA)
EP91110035A 1990-08-30 1991-06-19 Verfahren und Nähmaschinen zur Herstellung von Nähmustern Expired - Lifetime EP0477473B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4027364 1990-08-30
DE4027364A DE4027364A1 (de) 1990-08-30 1990-08-30 Verfahren und naehmaschine zur herstellung von naehmustern

Publications (3)

Publication Number Publication Date
EP0477473A2 EP0477473A2 (de) 1992-04-01
EP0477473A3 EP0477473A3 (en) 1992-04-15
EP0477473B1 true EP0477473B1 (de) 1995-01-04

Family

ID=6413182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91110035A Expired - Lifetime EP0477473B1 (de) 1990-08-30 1991-06-19 Verfahren und Nähmaschinen zur Herstellung von Nähmustern

Country Status (4)

Country Link
US (1) US5195442A (ja)
EP (1) EP0477473B1 (ja)
JP (1) JP2927579B2 (ja)
DE (1) DE4027364A1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135472C1 (ja) * 1991-10-28 1993-05-06 G.M. Pfaff Ag, 6750 Kaiserslautern, De
JP3811191B2 (ja) * 1993-06-14 2006-08-16 ブラザー工業株式会社 刺繍データの作成方法及びその装置並びにその刺繍データに基づいて形成された刺繍模様
JP4261698B2 (ja) * 1999-01-21 2009-04-30 Ｊｕｋｉ株式会社 ミシンの布送り機構
DE10203553C1 (de) * 2002-01-29 2003-07-03 Pfaff Ind Masch Näheinheit mit einem in Längs- und Querrichtung bewegbaren Nähguthalter
JP4744072B2 (ja) 2003-10-31 2011-08-10 Ｊｕｋｉ株式会社 ミシン
JP4665619B2 (ja) * 2005-06-15 2011-04-06 ブラザー工業株式会社 ジグザグミシン
US9272893B2 (en) 2013-03-12 2016-03-01 Keurig Green Mountain, Inc. Multi-valve liquid flow control for liquid supply
US9027488B2 (en) * 2013-10-02 2015-05-12 Shing Ray Sewing Machine Co., Ltd Direct drive cloth feeding mechanism of sewing machine
JP6653600B2 (ja) * 2016-03-10 2020-02-26 蛇の目ミシン工業株式会社 ミシン
JP2019058411A (ja) * 2017-09-27 2019-04-18 ブラザー工業株式会社 ミシン
US10750810B2 (en) 2017-12-24 2020-08-25 Jo-Ann Stores, Llc Method of projecting sewing pattern pieces onto fabric
CN108360152A (zh) * 2018-03-21 2018-08-03 芜湖恒耐特传动设备有限公司 用于包装袋加工设备的缝纫装置
TWI782686B (zh) * 2021-09-01 2022-11-01 伸興工業股份有限公司 縫紉機的送布齒驅動裝置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53145770A (en) * 1977-05-23 1978-12-19 Tokyo Shibaura Electric Co Multiple pattern sewing machine controller
US4123981A (en) * 1977-12-08 1978-11-07 The Singer Company Needle feed on electronic sewing machine
US4187794A (en) * 1979-05-18 1980-02-12 The Singer Company Sewing machine work feeding mechanism
DE8226648U1 (de) * 1982-09-22 1985-05-23 Dorina Nähmaschinen GmbH, 7500 Karlsruhe Nähmaschine mit einem Programmträger
CH660890A5 (de) * 1982-09-22 1987-05-29 Dorina Naehmasch Verfahren und naehmaschine zur herstellung von naehmustern.
JPS60119981A (ja) * 1983-12-01 1985-06-27 株式会社中日本システム 刺繍ミシン
JPS60176684A (ja) * 1984-02-22 1985-09-10 蛇の目ミシン工業株式会社 ミシンの送り方式
DE8525308U1 (de) * 1985-09-05 1987-09-03 Dorina Nähmaschinen GmbH, 7500 Karlsruhe Vorschubeinrichtung an einer Nähmaschine
DE3621238A1 (de) * 1986-06-25 1988-02-04 Union Special Gmbh Naehgutausrichtvorrichtung fuer naehmaschinen
JP2650383B2 (ja) * 1988-12-20 1997-09-03 ブラザー工業株式会社 ジグザグミシン
JPH02259154A (ja) * 1989-03-31 1990-10-19 Janome Sewing Mach Co Ltd ミシンにおける普通縫及び刺しゅう縫の切換装置

Also Published As

Publication number Publication date
JPH04226694A (ja) 1992-08-17
DE4027364C2 (ja) 1992-07-16
US5195442A (en) 1993-03-23
DE4027364A1 (de) 1992-03-05
JP2927579B2 (ja) 1999-07-28
EP0477473A2 (de) 1992-04-01
EP0477473A3 (en) 1992-04-15

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